Carpet beetle larva

Natural Habitat

Indoors in homes and commercial buildings, favoring dark and undisturbed areas such as under carpets, in closets, ventilation ducts, and storage areas. They feed on natural fibers and animal products.

Diet & Feeding

Keratin-containing materials (wool, silk, leather, feathers, hair), dried animal products, dead insects, pet dander, and occasionally plant-based materials like cereals.

Behavior Patterns

Larvae are typically slow-moving and avoid light. They undergo several molts before pupating. The bristly hairs (setae) on their bodies can cause irritation. Adults are small, oval-shaped beetles that are attracted to light and feed on pollen and nectar outdoors.

Risks & Benefits

Potential risks include damage to textiles, clothing, carpets, historical artifacts, and museum collections. Their bristles can cause skin irritation or allergic reactions in sensitive individuals. They can also contaminate food products. They do not pose direct health risks by biting or stinging. Benefits are minimal in household settings, but in nature, they play a role in decomposition by consuming animal remains.

Identified on: 9/16/2025